OKXT3W5C Converters Datasheet 

Part Number  OKXT3W5C 
Description  Adjustable 3Amp SIP NonIsolated DC/DC Converters 
Manufacture  Murata 
Total Page  15 Pages 
Datasheet 
www.murataps.com
OKX T/3W5 Series
Adjustable 3Amp SIP NonIsolated DC/DC Converters
FEATURES
Nonisolated SIP PoL DC/DC power module
2.45.5Vdc input voltage range
Programmable output voltage from 0.7525
3.366Vdc
Under Voltage shutdown (Vin)
Drives 1000 μF ceramic capacitive loads
High power conversion efﬁciency 94.5% at 3.3
Vout (typical)
Outstanding thermal derating performance
Over temperature and over current protection
On/Off control
UL60950, CSAC22.2 No.60950 IEC/EN60950
(pending)
Industrystandard (DOSA) SIP format
RoHS6 hazardous substance compliance
Typical unit
PRODUCT OVERVIEW
The OKXT/3W5 series are miniature SIP non
isolated PointofLoad (PoL) DC/DC power convert
ers for embedded applications. The module is fully
compatible with Distributedpower Open Standards
Alliance industrystandard speciﬁcations.
Applications include powering CPU’s, datacom/
telecom systems, programmable logic and mixed
voltage systems. The wide input range is 2.4 to 5.5
Volts DC at 3 amps. Based on ﬁxedfrequency syn
chronous buck converter switching topology, the
high power conversion efﬁcient Point of Load (PoL)
module features programmable output voltage
and On/Off control. These converters also include
under voltage lock out (UVLO), output short circuit
protection, overcurrent and over temperature
protections. These units are designed to meet all
standard UL/EN/IEC 609501 safety certiﬁcations
and RoHS6 hazardous substance compliance.
+Vin
F1
On/Off
Control
External
DC
Power
Source
Open = On
Closed = Off
(Positive
On/Off)
Common
Connection Diagram
Controller
t4XJUDIJOH
t'JMUFST
t$VSSFOU4FOTF
Reference and
Error Ampliﬁer
Figure 1. OKXT/3W5
Note: Murata Power Solutions strongly recommends an external input fuse, F1.
See speciﬁcations.
+Vout
Trim
Common
For full details go to
www.murataps.com/rohs
www.murataps.com/support
(pending)
MDC_OKX_T/3W5 Series.A01 Page 1 of 15

OKX T/3W5 Series
Adjustable 3Amp SIP NonIsolated DC/DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output
Input
Model Number ➀
VOUT
(Volts) ➀
IOUT R/N Regulation (Max.)
(Amps, Power (mVpp)
Vin Nom. Range
max) ➀ (Watts) Max. d Line Load (Volts) (Volts) e
Iin,
no load
(mA)
OKXT/3W5C .75253.6 3
9.9 40 ±0.2% ±0.5% 5 2.45.5 40
Iin,
full load
(Amps)
Efﬁciency
Min. Typ.
2.095 92.5% 94.5%
➀ All specifications are typical at nominal line voltage, Vout=nominal (3.3V for W5 models) and full load, +25°C.
d Ripple and Noise (R/N) is shown at Vout=1V. See specs for details.
e The input voltage range must be 0.5V greater than the output voltage.
Dimensions
in inches (mm)
0.40x0.90x0.282
(10.16x 22.86x 7.163)
PART NUMBER STRUCTURE
OK X  T / 3  W5 N  C
Okami Nonisolated PoL
RoHS Hazardous Substance Compliance
C = RoHS6 (does not claim EU RoHS
exemption 7b–lead in solder)
SIP Mount
Trimmable Output
Voltage Range
W5 Models = 0.75253.63V
On/Off Logic
P = Positive Logic
N = Negative Logic
Maximum Rated Output
Current in Amps
Input Voltage Range
W5 = 2.45.5V
Note: Some model number combinations
may not be available. See Ordering Guide
above. Contact Murata Power Solutions for
availability.
www.murataps.com/support
MDC_OKX_T/3W5 Series.A01 Page 2 of 15

Features  www.murataps.com OKX T/3W5 Series Adj ustable 3Amp SIP NonIsolated DC/DC Co nverters FEATURES Nonisolated SIP PoL DC/DC power module 2.45.5Vdc in put voltage range Programmable outpu t voltage from 0.7525 3.366Vdc Unde r Voltage shutdown (Vin) Drives 1000 μF ceramic capacitive loads High p ower conversion efﬁciency 94.5% at 3. 3 Vout (typical) Outstanding thermal derating performance Over temperatu re and over current protection On/Of f control UL60950, CSAC22.2 No.6095 0 IEC/EN60950 (pending) Industrysta ndard (DOSA) SIP format RoHS6 hazar dous substance compliance Typical unit PRODUCT OVERVIEW The OKXT/3W5 serie s are miniature SIP nonisolated Pointo fLoad (PoL) DC/DC power converters for embedded applications. The module is f ully compatible with Distributedpower Open Standards Alliance industrystanda rd speciﬁcations. Applications includ e powering CPU’s, datacom/ telecom sy stems, programmable logic and mixed voltage systems. The wide input range is 2.4 t. 
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